None of the fasteners can be purchased (that I could determine with lots of research), so were all fabricated as was the venturi. The best thing is that now I have specialized tooling and mechanical drawings of all of the bits that go missing or get dorked up. After looking at this, I realize now that the fuel line is not installed for the picture, but it was fabricated as well.
I'm suspicious that this was NOS despite being filthy as almost all of the original lacquer (?) is there protecting the bronze, which I discovered after the initial cleaning, and I chose to keep for this one. Additionally, the throttle had zero wear and the float and needle looked pristine (good stuff is still out there!). For whatever reason, the center of the casting directly below the idle circuit vent screen had lost it's coating, and that surface represents what it would look like if it had gotten "the works". Perhaps the next one will get the Full Monty as they really look sharp that way. I think this one will patinate very well naturally.
I think this turned out well. I just wish I had a good camera as this doesn't do it justice...